Home / 158,828.10-219,194.28-105,019.80

Finding the Fourth Proportional to 158,828.10, 219,194.28 and 105,019.80

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Solution

The fourth proportional to 158,828.10, 219,194.28 and 105,019.80 is: 144,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,828.10 : 219,194.28 = 105,019.80 : x
  2. Step 2: Convert to fraction form
    158,828.10/219,194.28 = 105,019.80/x
  3. Step 3: Cross multiply
    158,828.10x = 219,194.28 × 105,019.80
  4. Step 4: Simplify right side
    158,828.10x = 23,019,739,446.74
  5. Step 5: Solve for x
    x = 23,019,739,446.74/158,828.10
  6. Step 6: Final answer
    x = 144,934.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.